/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package control;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import model.Artista;
import model.ImagemDAO;
import model.TagDAO;
import model.Usuario;

/**
 *
 * @author Igor
 */
public class GerenciarImagemServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession(false);
        Usuario usuario = (session == null) ? null : (Usuario) session.getAttribute("usuarioAtual");
        
        out.println("<!DOCTYPE html>");
        if (usuario != null && usuario instanceof Artista){
            
            Artista artista = (Artista) usuario;            
            ArrayList<String> imagens = artista.getImagens();
            
            System.out.println(artista);
            if (request.getParameter("add") != null){
                if ("".equals(request.getParameter("link"))) 
                    out.println("<p>Link deve ser preenchido!</p>");                    
                else {
                    String imagem = request.getParameter("link");
                    if (imagens.contains(imagem)) out.println("<p>Link já existente!</p>");
                    else {
                        try {
                            ImagemDAO idao = new ImagemDAO();
                            idao.inserirByArtista(artista, imagem);
                            artista.getImagens().add(imagem);
                            out.println("<p>Imagem adicionada com sucesso!</p>");
                                                        
                        } catch (ClassNotFoundException ex) {
                            Logger.getLogger(GerenciarPerfilServlet.class.getName()).log(Level.SEVERE, null, ex);
                        } catch (SQLException ex) {
                            Logger.getLogger(GerenciarPerfilServlet.class.getName()).log(Level.SEVERE, null, ex);
                        }
                    }
                }
            } else if (request.getParameter("delete") != null){
                String link = request.getParameter("link");               
                try {
                    ImagemDAO idao = new ImagemDAO();

                    idao.removeByArtista(artista, link);
                    artista.getImagens().remove(link);
                    out.println("<p>Imagem Removida com sucesso!</p>");
                } catch (ClassNotFoundException ex) {
                    Logger.getLogger(GerenciarPerfilServlet.class.getName()).log(Level.SEVERE, null, ex);
                } catch (SQLException ex) {
                    Logger.getLogger(GerenciarPerfilServlet.class.getName()).log(Level.SEVERE, null, ex);
                }                
            }                
                
            out.println(
            "<h1>SongLoad Músicas Online</h1>" +
            "<p>Remoção de Imagens: </p>");
            
            if (imagens.isEmpty()) out.println("Não há Imagens registradas");
            else{
                out.println("<form method=\"post\" action=\"GerenciarImagemServlet\">");

                String imagem = null;
                Iterator it = imagens.iterator();
                while(it.hasNext()){
                    imagem = (String)it.next();
                    out.println("<input type=\"radio\" name=\"link\" value=\""+imagem+"\">"+imagem+"<br>");
                }
                out.println(
                "<input type=submit name=\"delete\" value=\"Remover Imagem\">"+
                "</form>");
            }
            
            out.println("<p>Adição de Imagens: </p>"+
            "<form method=\"post\" action=\"GerenciarImagemServlet\">" +                
                "Link da Imagem: <input type=text size=30 name=\"link\"><br>"+
                "<input type=submit name=\"add\" value=\"Adicionar\">"+
            "</form><a href=\"MenuPrincipalServlet\">Voltar</a>");
            
        }else {
            out.println("Você deve estar autenticado para acessar esta página!");           
            RequestDispatcher rd = request.getRequestDispatcher("/index.jsp");
            rd.include(request, response);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
